You can import a matrix, which is available as a file, into the Visum network model. In this case, only those matrix values are imported whose OD pairs exist in the network.
1. From the Edit menu, choose Matrices > Add external matrix to the network model.
The Add external matrix to network model window opens.
2. Make the desired changes.
|
Element |
Description |
|
Number |
User-defined matrix number |
|
Code |
Short name of the matrix |
|
Name |
Long name of the matrix |
|
Demand matrix for zones |
Select this option to import a demand matrix for zones. |
|
Skim matrix for zones |
Select this option to import a skim matrix for zones. |
|
Demand matrix for main zones |
Select this option to import a demand matrix for main zones. |
|
Skim matrix for main zones |
Select this option to import a skim matrix for main zones. |
|
File |
Click the Note Alternatively, into the field, enter the file name and the path. |
symbol to select the matrix file.3. Confirm with OK.
If the matrix file contains OD pairs that do not exist in the network, a corresponding message is displayed.
4. Confirm with OK if necessary.
The matrix data is read into a new Visum matrix. OD pairs that do not exist in the imported matrix file are assigned the value 0. The matrix is opened.
